y ' 



96 



The Weekly Florists^ Review* 



January 27, 1010. 



Leaks Ruin Stock 



Don't Have Them 

 Oor Emergency Pipe Clamps 



are made of malleable iron and are 

 guaranteed to make QUICK, SURK RE- 

 PAIRS of all spllts/nr rust boles on pipe. 



Send for catalogue. 

 Pipe Repairs and Steam Specialties 



JAMES McCREA & CO. 



Manufacturers 

 558-560 Washington Blvd. CHIC AGO 



Mention The Review when you write. 



BUY THB 



Taylor Automatic 

 RETURN TRAP 



AND SAVE MONEY 



Write for our Ghiarantee and 

 Best Prices 



TAYLOR STEAM TRAP CO. 



BATTLE CREEK. MICH., U. S. A. 



Mention The Review when you write. 



f WILKS 

 Hot Water Boilers 



Are 



Tbe Most Economical Boiler 

 for Greeubouses :: xi 



No night fireman required with our 

 Self-feeding Ho*. Water Boilers. 



Seid fir CaUloiDC aid Prices 



S. WILKS MFG. CO. 



8523 Shields Ave., CHICAGO 



Mention The Review when you write. 

 Special Notice to 



AMERICAN TRADERS 



If you are interested in European stocks of 

 Plants and Seeds and latest news concerning 

 same, subscribe to THE HORTICULTUBAL. 

 TBADB JOURNAL, published weekly, and 

 THB INTBBNATIONAL HOBTICUI.TUB- 

 AL TBADE JOUKNAL. publiBbed quarterly. 

 One dollar (International Money Order) sent to 

 us now will ensure your receiving eacb number 

 as published for one year. 

 Address 



The HORTICULTURAL PRINTING CO. 



BURNLEY, ENGLAND 



Me ition The Review when you write. 



for the sake of argument, you might con- 

 sider it exposed. The heating engineer 

 formed his estimates on what he terms 

 a "heat unit basis," instead of the ac- 

 cepted standards. H. G. M. 



So far as can be judged from the 

 data given, the amount of radiation is 

 well adjusted to the requirements of the 

 diflPerent houses, with the possible ex- 

 ception of the cucumber and strawberry 

 houses, in which a part of the coils are 

 two to three feet shorter than the houses 

 and the radiation is deficient to nearly 

 that extent, although, with the radiation 

 mentioned, there should be little difficulty 

 in maintaining a temperature of 65 de- 

 grees in the comparatively warm climate 

 of Long Island. The flows and returns 

 also seem to be of ample size. 



Had the nature of the difficulty been 

 stated it would have been easier to de- 

 tect the cause, but in the grapery it is 

 evident that the trouble is largely due 

 to placing the heating pipes in a pit. 

 Locating the coils above the surface, four 

 feet from either wall, would greatly in- 

 crease their efficiency. 



While the details of the other coils 

 and the connections with the mains are 

 not quite clearly shown, it is evident that 

 in each coil there is one 2-inch flow pipe 

 and from one to five 2-inch returns. All 

 of the pipes appear to have the same 

 grade; that is, the flows are parallel with 

 the returns and hence run uphill. This 

 is evidently one cause of the trouble,- as 

 it impedes the circulation. The proper 

 way is to use all of the pipes in a coil 

 as returns, connecting the higher end of 

 the coil as short as possible with the 

 main flow; or, if it is preferred to use 

 one of the pipes as a flow, run it down- 

 hill. The easiest way out of the difficulty 

 is to rais6 the end of each flow pipe in 

 the different coils three or four inches, 

 or enough so that it will have a slight 

 fall from the boiler. Of course, the air 

 valve should also be changed to the high- 

 est point in the flow pipe. 



If the remainder of the piping is prop- 

 erly arranged, this change alone should 

 be sufficient to give a good circulation. 



BOILER STEAMS POORLY. 



We are in a dilemma with regard to 

 our boilers. We have two boilers, each 

 supposed to be eighty horse-power, in- 

 ternal fired, about thirteen feet long and 

 similar in construction to the Scotch 

 marine boilers. Both are installed ex- 

 actly alike and have splendid draft. The 

 newer of the two boilers has twenty tubes 

 more than the old one, which has a water 

 fire-box, whereas the new boiler has a 

 brick box. The old boiler develops nearly 

 two pounds of pressure per minute, 

 thrown open to the whole plant of 

 50,000 feet, while the new boiler develops 

 only three-quarters of a pound under 

 similar conditions. 



We should like to know how many feet 

 an eighty horse-power boiler should heat, 

 and also what is the proper way to test a 

 boiler as to its capacity, under the con- 

 ditions described. A. E. C. 



It is customary to figure that a boiler 

 will carry 100 square feet of radiation 

 for each horse-power, and one foot of 

 steam radiation will heat six square feet 

 of glass to 60 degrees. Of course, this 

 is altogether too high for very small 

 boilers, but it should be safe for one of 

 the size mentioned, and on this basis an 

 eighty horse-power boiler should carry 

 about 50,000 square feet of glass to 60 



What'sThis? 



It*s the New 



Perfection 



Flue Cleaner 



and we want to send it to you for 

 ,30 days' FREE trial. 



The Perfection will clean welded 

 flues as well as old onea ; re- 

 move Bcale from tubes without 

 cutting metal ; clean hot or cold 

 flues without changing temper; 

 can be operated by flexible 

 handle. 



The knives are always sharp. 

 .Heads are drop steel forgings. 

 Hundreds now In use by florists. 



Scfllly Steel & iroaCo. 



Halsted and Fulton Sts., Chicago, III. 



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THE SUPERIOR 



GREENHOISE BOILER 



Has no Superior, 



Lararest Heating; Surface, 

 Most Perfect Combustion, 



Best Circulation Insured. 



Write for catalogue and post yourself— 

 you'll order no other boiler if you are looking 

 for the best. 



We carry a large stock of all kinds of 



GRATE BARS 



both rocking and stationary 



Fire Tools, Smoke Stacks, Boiler 



Casting^s, Fine Cleaners, Etc. 



Sead for catalogue and prices. 



Superior Midline and Boiier Wori>s 



840-850 West Superior St., CHICAG ) 

 L. D. Phone, Monroe 1008. / 



V. 



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NOTICE 



To all American Nurserymen and Seedsmen de ■ "8 



to keep in touch with commerciul horticulture in "8" 



land and the continent of Europe: V'our best n ■»o' 

 of doing this is to take in the 



Horticultural Advertiser 



Our circulation covers the whole trade in Great i'n': 

 ainandthe cream of the European firms. Imp^'"*{ 

 reports of all novelties, etc. Paper free on receii ' °* 

 75 cents, covering cost of postage yearly. As the f' • A; 

 is a purely trade medium, applicants should, witi' *"' 

 subscription, send a copy of their catalogue or "tn*' 

 evidence that they belong to the nursery or seed tr.ioe. 



A. & C. Pearson, Lowdham, Nottingham, i^i' 



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